18 Prii in parts of Wisconsin we visited last week. Green Bay, La Crosse, Niagara (Iron Mountain MI) and Appleton. The largest number was in La Crosse, where there were 8 total. Would have been 9 had my former college advisor taken his to work with him the day I stopped by the lab.
See about 12 daily here in Durham NC.
As far as Hummers, only saw 2, both in Green Bay.
See about 2 a week here.